f  K+K- analysis in Run4 Au-Au collisions at √sNN = 200 GeV

Slides:

Advertisements

Similar presentations

PID v2 and v4 from Au+Au Collisions at √sNN = 200 GeV at RHIC

Advertisements

Ultra Peripheral Collisions at RHIC Coherent Coupling Coherent Coupling to both nuclei: photon~Z 2, Pomeron~A 4/3 Small transverse momentum p t ~ 2h 

1 In the meantime Varied p T cut (1.5 GeV, 1 GeV, 500 MeV) 2. Allowed for events with 2 good tracks only (+  ), originally 4 good tracks where required,

Invariant Mass Calculation J/ψ Rosi Reed 10/31/07.

Source Dynamics from Deuteron and Anti-deuteron Measurements in 200 GeV Au+Au Collisions Hugo E Valle Vanderbilt University (For the PHENIX Collaboration)

Search for Thermal Photons in PHENIX - Torsten Dahms - Stony Brook University 23 rd Winter Workshop On Nuclear Dynamics February 13, 2007.

Invariant Mass Calculation J/ψ Rosi Reed 3/5/08. Introduction J/ψ is the first excited state of charmonium Rest mass Gev/c 2 Full Width 93.4 keV.

Masashi Kaneta, LBNL Masashi Kaneta for the STAR collaboration Lawrence Berkeley National Lab. First results from STAR experiment at RHIC - Soft hadron.

PHENIX Fig1. Phase diagram Subtracted background Subtracted background Red point : foreground Blue point : background Low-mass vector mesons (ω,ρ,φ) ～

GlueX Particle Identification Ryan Mitchell Indiana University Detector Review, October 2004.

Current Status of Hadron Analysis Introduction Hadron PID by PHENIX-TOF  Current status of charged hadron PID  CGL and track projection point on TOF.

Nov2,2001High P T Workshop, BNL Julia Velkovska High pt Hadrons from  sNN = 130 GeV Au-Au collisions measured in PHENIX Julia Velkovska (BNL) for PHENIX.

Non-identified Two Particle Correlations from Run I Understanding drift chamber tracking – Tracker and candidatory – Two particle efficiencies/ghosts A.

D 0 Measurement in Cu+Cu Collisions at √s=200GeV at STAR using the Silicon Inner Tracker (SVT+SSD) Sarah LaPointe Wayne State University For the STAR Collaboration.

 Production at forward Rapidity in d+Au Collisions at 200 GeV The STAR Forward TPCs Lambda Reconstruction Lambda Spectra & Yields Centrality Dependence.

Highlights of Vanderbilt’s Presence in PHENIX Charles F. Maguire Vanderbilt University.

Quarkonia spectra in PbPb at 2.76 TeV Abdulla Abdulsalam (Dr. Prashant Shukla) BARC, Mumbai Outline Motivation Event selection Kinematic cuts Acceptance.

Masashi Kaneta, RBRC, BNL Collective flow and QGP properties, RIKEN-BNL workshop (2003/11/17-19) 1 KANETA, Masashi for the PHENIX Collaboration RIKEN-BNL.

Measurement of Inclusive Photon in Au+Au collisions by Conversion Method at RHIC-PHENIX T. Hachiya, Hiroshima Univ., for the PHENIX collaboration.

Systematic measurement of light vector mesons at RHIC-PHNEIX Yoshihide Nakamiya Hiroshima University, Japan (for the PHENIX Collaboration) Quark Matter.

M. Muniruzzaman University of California Riverside For PHENIX Collaboration Reconstruction of  Mesons in K + K - Channel for Au-Au Collisions at  s NN.

Measurement of photons via conversion pairs with PHENIX at RHIC - Torsten Dahms - Stony Brook University HotQuarks 2006 – May 18, 2006.

Aug 2003 Craig Ogilvie 1 Progress High pt D=>Kpi, need  rates  S/B vs DCA cut and S/  B vs DCA cut strategy reminder  B=0  Fit Si hits with a line,

1 Nuclear modification and elliptic flow measurements for  mesons at  s NN = 200 GeV d+Au and Au+Au collisions by PHENIX Dipali Pal for the PHENIX collaboration.

Particle Identification with TRD Prashant Shukla Institute of Physics University of Heidelberg Presentation at International Workshop on TRD 27 th September.

The Lambda (3 rd installment) Lbar+random observations Richard Seto Ppg016 meeting Jan 2, 2003.

High Density Matter and Searches for Huan Z. Huang Department of Physics and Astronomy University of California, Los Angeles The STAR Collaboration.

4/12/05 -Xiaojian Zhang, 1 UIUC paper review Introduction to Bc Event selection The blind analysis The final result The systematic error.

Elliptic flow of D mesons Francesco Prino for the D2H physics analysis group PWG3, April 12 th 2010.

QM2004 Version1 Measurements of the  ->     with PHENIX in Au+Au Collisions at 200 GeV at RHIC PPG016 Figures with Final Approval Charles F. Maguire.

Study of Charged Hadrons in Au-Au Collisions at with the PHENIX Time Expansion Chamber Dmitri Kotchetkov for the PHENIX Collaboration Department of Physics,

Masashi Kaneta, RBRC, BNL 2003 Fall Meeting of the Division of Nuclear Physics (2003/10/31) 1 KANETA, Masashi for the PHENIX Collaboration RIKEN-BNL Research.

Proton to Pion ratio in Jet and Bulk region in Heavy Ion collisions Misha Veldhoen (Utrecht University) For the ALICE collaboration Hard Probes 2012 Cagliari,

Pi0 Reconstruction with High p t Photons John Chin-Hao Chen.

PHENIX J/  Measurements at  s = 200A GeV Wei Xie UC. RiverSide For PHENIX Collaboration.

Fall DNP Meeting,  meson production in Au-Au and d-Au collision at \ /s NN = 200 GeV Dipali Pal Vanderbilt University (for the PHENIX collaboration)

Di-electron elliptic flow in

Ilia Ravinovich for the PHENIX Collaboration

Charles F. Maguire Vanderbilt University

Checks of TOF Fiducial Cuts

fKK analysis in Run3 d+Au collisions: Update

Measurement of inclusive branching fraction for y(3686)fX

Status of 20 GeV Au+Au Analysis

Hadron PID recalibration in EMCAL GeV dataset)

Hadronic resonances from ALICE in pp collisions

Production of Phi meson at 62.4GeV AuAu Collisions

Study of hadronic resonances in the ALICE experiment

First physics from the ALICE electromagnetic calorimeters

Tatsuya Chujo for the PHENIX collaboration

EMCal Recalibration Check

Takafumi Niida from Univ. of Tsukuba for the PHENIX Collaborations

Run4 fK+K- analysis update

Run4 f K+K- analysis: analysis train

EMCal Recalibration Check

Hadronic resonances from ALICE in pp collisions

f  K+K- analysis in Run4 Au+Au collisions

EMCal Run4 Recalibration Check Looking at K mass centroid and width

for the PHENIX collaboration

Run3 f analysis: Proposal for PPG formation

φ-meson production and partonic collectivity at RHIC

->K+K- Production at 62.4GeV Au+Au Collisions

Problems with the Run4 Preliminary Phi->KK Analysis

Run4 Fiducial Match between Real and MC

High-pT Identified Charged Hadrons in √sNN = 200 GeV Au+Au Collisions

fK+K- analysis in Run3: Scopes of the paper

fK+K- yield analysis update

Search for the onset of baryon anomaly at RHIC-PHENIX

->K+K- Productions at 62.4GeV Au+Au Collisions

Systematic measurements of light vector mesons in RHIC-PHENIX

10 TeV BJ/K at CMS Zheng Wang Apr

Presentation transcript:

f  K+K- analysis in Run4 Au-Au collisions at √sNN = 200 GeV Dipali Pal Vanderbilt University Light/Heavy PWG meeting May 05, 2005 1

Event and track selection Used minimum bias CNT files from Stripe-1,2 and 3 at RCF. |bbcz| < 30 cm & valid reaction plane angle (rp12) Total number of events analyzed + + field runs: 120 M - - filed runs: 87 M Track selection:  DC quality 31 or 63, |zed| < 75 cm  3s match in z and f at TOF (TOF analysis)  3s match at PC3 and PbSc (PbSc analysis)  etof > 2 MeV at TOF  2s kaon PID cut at TOF  0.2 < m2 < 0.3 GeV2/c4 tracks as kaons in PbSc  Pair cuts: DC Ghost rejection and TOF/ PbSc intruder rejection. 2

fK+K- invariant mass spectra TOF - TOF Minimum-bias (0 – 90%) events. Normalization: 2√N++N– method Fitted with Relativistic Breit Wigner convolved with Gaussian phi mass resolution, s = 1.2 MeV/c2 3

fK+K- invariant mass spectra TOF - East K+ from TOF, K- from PbSc(e) K- from TOF, K+ from PbSc(e) Minimum-bias (0 – 90%) events. Normalization: 2√N++N– method Fitted with Relativistic Breit Wigner convolved with Gaussian phi mass resolution, s = 1.2 MeV/c2 4

fK+K- invariant mass spectra East - East Minimum-bias (0 – 90%) events. Normalization: 2√N++N– method Fitted with Relativistic Breit Wigner convolved with Gaussian phi mass resolution, s = 1.2 MeV/c2 5

fK+K- invariant mass spectra West-West Minimum-bias (0 – 90%) events. Normalization: 2√N++N– method Fitted with Relativistic Breit Wigner convolved with Gaussian phi mass resolution, s = 1.2 MeV/c2 6

fK+K- invariant mass spectra Full dataset Minimum-bias (0 – 90%) events. Normalization: 2√N++N– method Fitted with Relativistic Breit Wigner convolved with Gaussian phi mass resolution, s = 1.2 MeV/c2 7

Line shape of f at different centralities-1 8

Line shape of f at different centralities-2 9

Line shape of f at different centralities-3 80 – 90% 10

Line shape of f at different centralities-4 11

Summary fK+K- invariant mass spectra has been studied for different subsystem combinations. Reconstructed ~39450 f mesons from 207 M events. A first look at the line shape for a large number of centrality bins. 12

Backup slide: Run2 & Run4 dead areas